We propose a different solution: Use the Arduino platform. Connect an Arduino via USB and a virtual serial port to E-Prime. Add buttons or other sensors to it. Even better, add actuators to it – LEDs, vibrators, etc.

Or, connect an Arduino Leonardo via USB, make it emulate a HID, and interface sensors with any experimentation software, including DMDX.

1: a Cherry key module mounted on a Lego Duplo brick. 2: A SeeedStudio screw connector, connecting the wires from the button and a resistor to the Grove wires. 3: An Arduino Uno with a SeeedStudio Grove base shield. The USB connector in the front connects to the PC. 4: the full setup: an improvised response box for 50 €, millisecond precise.

We are expanding on this line of work, testing additional boards and sensors. We are also highly interested in porting the scripts to other platforms (e.g., Presentation). If you would like to contribute, please contact us.

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